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E. nnssrsn'or CHICAGO, ILLINOIS, A ssIeNoIt To HIMSIILF', T. TRIP?,

AND E. 1i. BRoWN, orA SAME PLACE.v

Letters Patent No. 70,714, dated November 12, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, E. HERBSTER, of Chicago, in the county of Cook, inthe State of Illinois, have invented an Improved `Sash-Fastener; and dohereby declare that lthefollowing is a full and exact descriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, making a part of thisspecification, in rvhichl y v Figure 1 is an elevation of mysash-fastener with the face removed.

Figuref2, a transverse sectional elevation of the same, takenthrougl.;,theline'XX.A Figure 3, a perspective representation of the pinvvhichlocks the 'coVglW-heel.l The nature of my invention relates tothat classof fasteners or locks-which have'springs jand cog-wheels.

for balancing the sash; and the peculiar arrangement, which I considernew, consists vin making a? series of holes in the main cog-wheel, andarranging a pin to enter either of said holes, and thereby lock the sashat any required point; and in the use of a cylinder or sleeve for thesupport of the pin, and a coil spring arranged with notches and slotsfor the purpose of holding the pin out of the holes in the wheel whenthe sash. is to be run up or down; and further,in the'use of a keyarranged to pass through the casing and into a pinion for theconvenience of Winding the spring up to such a tension as is necessaryto balance the sash.

In order to give a correct understanding of my invention, I have markedcorresponding parts with similar letters, and will ,now give aA detaileddescription.

A represents the case of a common sash-fastener fitted into a frame,shown by the broken line B, hg. 1. The` broken line J represents a sash,and I the rack attached to the same for the purpose of causing' saidsash to be operated by means of cog-wheel D and spring C. The wheel D ismade with a series of holes, Z7 b, Sto., in its face for the purposeof-receiving a pin, E, which is arranged tohave a reciprocating motionin a sleeve, F, and press against'the surface of Wheel D, preparatory toentering the holes I), by means of a coil spring, lc, tted to the insideof sleeve F, and made to press against a stop,f, put through pin E, asseen at iig. 2. The sleeve F, as shown at hg. 3, has aslot, h, madeparallel with pin E, and a slot, fn, made at right angles to h for thepurpose of allowing stopfto pass through slot h, when pin E is to bedrawn out of holes b, and be turned so as to lock inthe short slot a,and'thus be held in place duringthe time the sash J is .being raised orlowered.

This arrangement is very simple, yet an effectual means for fasteningsash, and as the linob P is made to project inside of the casing, nodifficulty need be experienced, by persons of ordinary capacity, inoperating the device. A pinion, Gr, is made to mesh in the cogs of wheelD, and has a square opening, S, for receiving the windinglkey T putthrough the same plate U, which supports the'pin E, and used to give therequired tension to spring vC for balancing a sash. lThis key can bereadily removed when not'in use, and when necessary, in order to securecheapness, may be arranged to operatetil'e-shat't'l of wheel D directly,in which case the pinion G need not be used. i

Having thus fully described my device, what I claim, and desire tosecure by Letters Patent, isd

1. The combination of wheel D, having holes b b, tc., with pin E,arranged to operate in sleeve F, having slots h and n, for the purposeof locking sash, substantially as herein' sety forth. .Y i

2. The combination of wheel D, spring C,- pin E, sleeve F, and key T,arranged to wind said spring up, Aand to fasten sash, substantially asand for thc-purpose set'forth.

EW. HERBSTER.

Witnesses:

GEO. L. CHAPIN, A. HAYWARD.

